540075287281 has 2 divisors, whose sum is σ = 540075287282. Its totient is φ = 540075287280.

The previous prime is 540075287201. The next prime is 540075287287. The reversal of 540075287281 is 182782570045.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 515200950625 + 24874336656 = 717775^2 + 157716^2 .

It is a cyclic number.

It is not a de Polignac number, because 540075287281 - 2⁹ = 540075286769 is a prime.

It is a super-2 number, since 2×540075287281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (540075287287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270037643640 + 270037643641.

It is an arithmetic number, because the mean of its divisors is an integer number (270037643641).

Almost surely, 2^540075287281 is an apocalyptic number.

It is an amenable number.

540075287281 is a deficient number, since it is larger than the sum of its proper divisors (1).

540075287281 is an equidigital number, since it uses as much as digits as its factorization.

540075287281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1254400, while the sum is 49.

The spelling of 540075287281 in words is "five hundred forty billion, seventy-five million, two hundred eighty-seven thousand, two hundred eighty-one".